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Finding the Fourth Proportional to 472,285.50, 651,754.41 and 257,421.26

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Solution

The fourth proportional to 472,285.50, 651,754.41 and 257,421.26 is: 355,241.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,285.50 : 651,754.41 = 257,421.26 : x
  2. Step 2: Convert to fraction form
    472,285.50/651,754.41 = 257,421.26/x
  3. Step 3: Cross multiply
    472,285.50x = 651,754.41 × 257,421.26
  4. Step 4: Simplify right side
    472,285.50x = 167,775,441,432.76
  5. Step 5: Solve for x
    x = 167,775,441,432.76/472,285.50
  6. Step 6: Final answer
    x = 355,241.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.